drivers/misc: Share qbman init between archs

This patch adds changes necessary to move functionality present in
PowerPC folders with ARM architectures that have DPAA1 QBMan hardware

- Create new board/freescale/common/fsl_portals.c to house shared
  device tree fixups for DPAA1 devices with ARM and PowerPC cores
- Add new header file to top includes directory to allow files in
  both architectures to grab the function prototypes
- Port inhibit_portals() from PowerPC to ARM. This function is used in
  setup to disable interrupts on all QMan and BMan portals. It is
  needed because the interrupts are enabled by default for all portals
  including unused/uninitialised portals. When the kernel attempts to
  go to deep sleep the unused portals prevent it from doing so

Signed-off-by: Ahmed Mansour <ahmed.mansour@nxp.com>

Series-changes: 2
- Add get_qman_freq() to replace get_sys_info() for readability
- Correct the copyright year in new files
- Replace !ARM with PPC to wall off PowerPC SOCs specific qman setup
- Rename portals.c -> fsl_portals.c for clarity

Series-changes: 3
- Add freescale old copyright in new file since it is a modified copy
- Add ifdef QBMAN guard around get_qman_freq()
- Return freq_qman instead of freq_systembus. More readable and robust
- Add white space before return line in get_qman_freq()

Series-changes: 4
- Update function name setup_portals() to setup_qbman_portals() in
  files that were missed the first time

Series-changes: 5
- Include <fsl_qbman.h> to fix missing prototype in p1023rdb.c

1 files changed, 305 insertions, 0 deletions

diff --git a/drivers/misc/fsl_portals.c b/drivers/misc/fsl_portals.c
new file mode 100644
index 0000000..3b3dd02
--- /dev/null
+++ b/drivers/misc/fsl_portals.c
@@ -0,0 +1,305 @@
+/*
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+
+#include <asm/processor.h>
+#include <asm/io.h>
+#ifdef CONFIG_PPC
+#include <asm/fsl_portals.h>
+#include <asm/fsl_liodn.h>
+#endif
+#include <fsl_qbman.h>
+
+#define MAX_BPORTALS (CONFIG_SYS_BMAN_CINH_SIZE / CONFIG_SYS_BMAN_SP_CINH_SIZE)
+#define MAX_QPORTALS (CONFIG_SYS_QMAN_CINH_SIZE / CONFIG_SYS_QMAN_SP_CINH_SIZE)
+void setup_qbman_portals(void)
+{
+	void __iomem *bpaddr = (void *)CONFIG_SYS_BMAN_CINH_BASE +
+				CONFIG_SYS_BMAN_SWP_ISDR_REG;
+	void __iomem *qpaddr = (void *)CONFIG_SYS_QMAN_CINH_BASE +
+				CONFIG_SYS_QMAN_SWP_ISDR_REG;
+#ifdef CONFIG_PPC
+	struct ccsr_qman *qman = (void *)CONFIG_SYS_FSL_QMAN_ADDR;
+
+	/* Set the Qman initiator BAR to match the LAW (for DQRR stashing) */
+#ifdef CONFIG_PHYS_64BIT
+	out_be32(&qman->qcsp_bare, (u32)(CONFIG_SYS_QMAN_MEM_PHYS >> 32));
+#endif
+	out_be32(&qman->qcsp_bar, (u32)CONFIG_SYS_QMAN_MEM_PHYS);
+#endif
+#ifdef CONFIG_FSL_CORENET
+	int i;
+
+	for (i = 0; i < CONFIG_SYS_QMAN_NUM_PORTALS; i++) {
+		u8 sdest = qp_info[i].sdest;
+		u16 fliodn = qp_info[i].fliodn;
+		u16 dliodn = qp_info[i].dliodn;
+		u16 liodn_off = qp_info[i].liodn_offset;
+
+		out_be32(&qman->qcsp[i].qcsp_lio_cfg, (liodn_off << 16) |
+					dliodn);
+		/* set frame liodn */
+		out_be32(&qman->qcsp[i].qcsp_io_cfg, (sdest << 16) | fliodn);
+	}
+#endif
+
+	/* Change default state of BMan ISDR portals to all 1s */
+	inhibit_portals(bpaddr, CONFIG_SYS_BMAN_NUM_PORTALS, MAX_BPORTALS,
+			CONFIG_SYS_BMAN_SP_CINH_SIZE);
+	inhibit_portals(qpaddr, CONFIG_SYS_QMAN_NUM_PORTALS, MAX_QPORTALS,
+			CONFIG_SYS_QMAN_SP_CINH_SIZE);
+}
+
+void inhibit_portals(void __iomem *addr, int max_portals,
+		     int arch_max_portals, int portal_cinh_size)
+{
+	u32 val;
+	int i;
+
+	/* arch_max_portals is the maximum based on memory size. This includes
+	 * the reserved memory in the SoC.  max_portals the number of physical
+	 * portals in the SoC
+	 */
+	if (max_portals > arch_max_portals) {
+		printf("ERROR: portal config error\n");
+		max_portals = arch_max_portals;
+	}
+
+	for (i = 0; i < max_portals; i++) {
+		out_be32(addr, -1);
+		val = in_be32(addr);
+		if (!val) {
+			printf("ERROR: Stopped after %d portals\n", i);
+			return;
+		}
+		addr += portal_cinh_size;
+	}
+	debug("Cleared %d portals\n", i);
+}
+
+#ifdef CONFIG_PPC
+static int fdt_qportal(void *blob, int off, int id, char *name,
+		       enum fsl_dpaa_dev dev, int create)
+{
+	int childoff, dev_off, ret = 0;
+	u32 dev_handle;
+#ifdef CONFIG_FSL_CORENET
+	int num;
+	u32 liodns[2];
+#endif
+
+	childoff = fdt_subnode_offset(blob, off, name);
+	if (create) {
+		char handle[64], *p;
+
+		strncpy(handle, name, sizeof(handle));
+		p = strchr(handle, '@');
+		if (!strncmp(name, "fman", 4)) {
+			*p = *(p + 1);
+			p++;
+		}
+		*p = '\0';
+
+		dev_off = fdt_path_offset(blob, handle);
+		/* skip this node if alias is not found */
+		if (dev_off == -FDT_ERR_BADPATH)
+			return 0;
+		if (dev_off < 0)
+			return dev_off;
+
+		if (childoff <= 0)
+			childoff = fdt_add_subnode(blob, off, name);
+
+		/* need to update the dev_off after adding a subnode */
+		dev_off = fdt_path_offset(blob, handle);
+		if (dev_off < 0)
+			return dev_off;
+
+		if (childoff > 0) {
+			dev_handle = fdt_get_phandle(blob, dev_off);
+			if (dev_handle <= 0) {
+				dev_handle = fdt_alloc_phandle(blob);
+				ret = fdt_set_phandle(blob, dev_off,
+						      dev_handle);
+				if (ret < 0)
+					return ret;
+			}
+
+			ret = fdt_setprop(blob, childoff, "dev-handle",
+					  &dev_handle, sizeof(dev_handle));
+			if (ret < 0)
+				return ret;
+
+#ifdef CONFIG_FSL_CORENET
+			num = get_dpaa_liodn(dev, &liodns[0], id);
+			ret = fdt_setprop(blob, childoff, "fsl,liodn",
+					  &liodns[0], sizeof(u32) * num);
+			if (!strncmp(name, "pme", 3)) {
+				u32 pme_rev1, pme_rev2;
+				ccsr_pme_t *pme_regs =
+					(void *)CONFIG_SYS_FSL_CORENET_PME_ADDR;
+
+				pme_rev1 = in_be32(&pme_regs->pm_ip_rev_1);
+				pme_rev2 = in_be32(&pme_regs->pm_ip_rev_2);
+				ret = fdt_setprop(blob, childoff,
+						  "fsl,pme-rev1", &pme_rev1,
+						  sizeof(u32));
+				if (ret < 0)
+					return ret;
+				ret = fdt_setprop(blob, childoff,
+						  "fsl,pme-rev2", &pme_rev2,
+						  sizeof(u32));
+			}
+#endif
+		} else {
+			return childoff;
+		}
+	} else {
+		if (childoff > 0)
+			ret = fdt_del_node(blob, childoff);
+	}
+
+	return ret;
+}
+#endif /* CONFIG_PPC */
+
+void fdt_fixup_qportals(void *blob)
+{
+	int off, err;
+	unsigned int maj, min;
+	unsigned int ip_cfg;
+	struct ccsr_qman *qman = (void *)CONFIG_SYS_FSL_QMAN_ADDR;
+	u32 rev_1 = in_be32(&qman->ip_rev_1);
+	u32 rev_2 = in_be32(&qman->ip_rev_2);
+	char compat[64];
+	int compat_len;
+
+	maj = (rev_1 >> 8) & 0xff;
+	min = rev_1 & 0xff;
+	ip_cfg = rev_2 & 0xff;
+
+	compat_len = sprintf(compat, "fsl,qman-portal-%u.%u.%u",
+			     maj, min, ip_cfg) + 1;
+	compat_len += sprintf(compat + compat_len, "fsl,qman-portal") + 1;
+
+	off = fdt_node_offset_by_compatible(blob, -1, "fsl,qman-portal");
+	while (off != -FDT_ERR_NOTFOUND) {
+#ifdef CONFIG_PPC
+#ifdef CONFIG_FSL_CORENET
+		u32 liodns[2];
+#endif
+		const int *ci = fdt_getprop(blob, off, "cell-index", &err);
+		int i;
+
+		if (!ci)
+			goto err;
+
+		i = *ci;
+#ifdef CONFIG_SYS_DPAA_FMAN
+		int j;
+#endif
+
+#endif /* CONFIG_PPC */
+		err = fdt_setprop(blob, off, "compatible", compat, compat_len);
+		if (err < 0)
+			goto err;
+#ifdef CONFIG_PPC
+#ifdef CONFIG_FSL_CORENET
+		liodns[0] = qp_info[i].dliodn;
+		liodns[1] = qp_info[i].fliodn;
+		err = fdt_setprop(blob, off, "fsl,liodn",
+				  &liodns, sizeof(u32) * 2);
+		if (err < 0)
+			goto err;
+#endif
+
+		i++;
+
+		err = fdt_qportal(blob, off, i, "crypto@0", FSL_HW_PORTAL_SEC,
+				  IS_E_PROCESSOR(get_svr()));
+		if (err < 0)
+			goto err;
+
+#ifdef CONFIG_FSL_CORENET
+#ifdef CONFIG_SYS_DPAA_PME
+		err = fdt_qportal(blob, off, i, "pme@0", FSL_HW_PORTAL_PME, 1);
+		if (err < 0)
+			goto err;
+#else
+		fdt_qportal(blob, off, i, "pme@0", FSL_HW_PORTAL_PME, 0);
+#endif
+#endif
+
+#ifdef CONFIG_SYS_DPAA_FMAN
+		for (j = 0; j < CONFIG_SYS_NUM_FMAN; j++) {
+			char name[] = "fman@0";
+
+			name[sizeof(name) - 2] = '0' + j;
+			err = fdt_qportal(blob, off, i, name,
+					  FSL_HW_PORTAL_FMAN1 + j, 1);
+			if (err < 0)
+				goto err;
+		}
+#endif
+#ifdef CONFIG_SYS_DPAA_RMAN
+		err = fdt_qportal(blob, off, i, "rman@0",
+				  FSL_HW_PORTAL_RMAN, 1);
+		if (err < 0)
+			goto err;
+#endif
+#endif /* CONFIG_PPC */
+
+err:
+		if (err < 0) {
+			printf("ERROR: unable to create props for %s: %s\n",
+			       fdt_get_name(blob, off, NULL),
+			       fdt_strerror(err));
+			return;
+		}
+
+		off = fdt_node_offset_by_compatible(blob, off,
+						    "fsl,qman-portal");
+	}
+}
+
+void fdt_fixup_bportals(void *blob)
+{
+	int off, err;
+	unsigned int maj, min;
+	unsigned int ip_cfg;
+	struct ccsr_bman *bman = (void *)CONFIG_SYS_FSL_BMAN_ADDR;
+	u32 rev_1 = in_be32(&bman->ip_rev_1);
+	u32 rev_2 = in_be32(&bman->ip_rev_2);
+	char compat[64];
+	int compat_len;
+
+	maj = (rev_1 >> 8) & 0xff;
+	min = rev_1 & 0xff;
+
+	ip_cfg = rev_2 & 0xff;
+
+	compat_len = sprintf(compat, "fsl,bman-portal-%u.%u.%u",
+			     maj, min, ip_cfg) + 1;
+	compat_len += sprintf(compat + compat_len, "fsl,bman-portal") + 1;
+
+	off = fdt_node_offset_by_compatible(blob, -1, "fsl,bman-portal");
+	while (off != -FDT_ERR_NOTFOUND) {
+		err = fdt_setprop(blob, off, "compatible", compat, compat_len);
+		if (err < 0) {
+			printf("ERROR: unable to create props for %s: %s\n",
+			       fdt_get_name(blob, off, NULL),
+			       fdt_strerror(err));
+			return;
+		}
+
+		off = fdt_node_offset_by_compatible(blob, off,
+						    "fsl,bman-portal");
+	}
+}